Finding the Fourth Proportional to 76,997.36, 106,251.36 and 44,729.12
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Solution
The fourth proportional to 76,997.36, 106,251.36 and 44,729.12 is: 61,723.28
Step by Step Solution
- Step 1: Write the proportion equation
76,997.36 : 106,251.36 = 44,729.12 : x - Step 2: Convert to fraction form
76,997.36/106,251.36 = 44,729.12/x - Step 3: Cross multiply
76,997.36x = 106,251.36 × 44,729.12 - Step 4: Simplify right side
76,997.36x = 4,752,529,831.60 - Step 5: Solve for x
x = 4,752,529,831.60/76,997.36 - Step 6: Final answer
x = 61,723.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.